Independent Variable - Definition and Real Life Examples


An independent variable is a variable whose value can either occur freely, be chosen freely, or be manipulated freely. In other words, an independent variable can usually be anything you want it to be.  

For example, suppose you go to the mall to buy grapes. The retail price says "2 dollars per pound."

The number of pounds of grapes that you buy is an independent variable.

It is so because you are free to buy 1 kilogram, 3 kilograms, 100 kilograms, or any other amount that you like as long as the store has this amount that you need in stock.

More examples of independent variables


1.
A recipe says to use 1/4 teaspoon of pepper for each pound of turkey meat.

The number of pounds of turkey that you use is an independent variable.

2. A car can travel about 30 miles on one gallon of gas. 

The number of gallons of gas is an independent variable.

3. Let C = 1.02X be the cost of producing an item with X being the number of items produced and C the cost.

X is an independent variable.

You are free to choose or manipulate freely the number of items you produce.

Recent math words

  1. What is a Vector? Definition and Examples

    Feb 04, 22 05:28 AM

    What is a vector? Definition, explanations and easy to understand read life examples.

    Read More

  2. What are Vertical Angles? Definition and Examples

    Feb 03, 22 05:45 AM

    What are vertical angles? Definition, explanation and easy to understand examples.

    Read More

Enjoy this page? Please pay it forward. Here's how...

Would you prefer to share this page with others by linking to it?

  1. Click on the HTML link code below.
  2. Copy and paste it, adding a note of your own, into your blog, a Web page, forums, a blog comment, your Facebook account, or anywhere that someone would find this page valuable.
Share this page: